harmony 鸿蒙native_cencinfo.h
native_cencinfo.h
Overview
The native_cencinfo.h file declares the native APIs used to set decryption parameters.
Library: libnative_media_avcencinfo.so
Since: 12
Related module: Multimedia_Drm
Summary
Structs
| Name | Description |
|---|---|
| struct DrmSubsample | Describes the subsample type. |
Macros
| Name | Description |
|---|---|
| DRM_KEY_ID_SIZE 16 | The length of the key ID is 16 bytes. |
| DRM_KEY_IV_SIZE 16 | The length of the Initialization Vector (IV) is 16 bytes. |
| DRM_KEY_MAX_SUB_SAMPLE_NUM 64 | The maximum number of subsamples is 64. |
Types
| Name | Description |
|---|---|
| typedef struct OH_AVBuffer OH_AVBuffer | Defines a struct for the audio/video buffer. |
| typedef struct OH_AVCencInfo OH_AVCencInfo | Defines a struct for the audio/video Common Encryption Scheme (CENC) information. |
| typedef enum DrmCencAlgorithm DrmCencAlgorithm | Defines an enum for the DRM CENC algorithm types. |
| typedef enum DrmCencInfoMode DrmCencInfoMode | Defines an enum for the modes for setting the key ID, IV, and subsample information in the CENC information. |
| typedef struct DrmSubsample DrmSubsample | Defines a struct for the subsample type. |
Enums
| Name | Description |
|---|---|
| DrmCencAlgorithm { DRM_ALG_CENC_UNENCRYPTED = 0x0, DRM_ALG_CENC_AES_CTR = 0x1, DRM_ALG_CENC_AES_WV = 0x2, DRM_ALG_CENC_AES_CBC = 0x3, DRM_ALG_CENC_SM4_CBC = 0x4, DRM_ALG_CENC_SM4_CTR = 0x5 } |
Enumerates the DRM CENC algorithm types. |
| DrmCencInfoMode { DRM_CENC_INFO_KEY_IV_SUBSAMPLES_SET = 0x0, DRM_CENC_INFO_KEY_IV_SUBSAMPLES_NOT_SET = 0x1 } |
Enumerates the modes for setting the key ID, IV, and subsample information in the CENC information. |
Functions
| Name | Description |
|---|---|
| OH_AVCencInfo * OH_AVCencInfo_Create () | Creates an OH_AVCencInfo instance for setting the CENC information. |
| OH_AVErrCode * OH_AVCencInfo_Destroy (OH_AVCencInfo *cencInfo) | Destroys an OH_AVCencInfo instance and clears internal resources. |
| OH_AVErrCode * OH_AVCencInfo_SetAlgorithm (OH_AVCencInfo *cencInfo, enum DrmCencAlgorithm algo) | Sets an encryption algorithm of the CENC information. |
| OH_AVErrCode * OH_AVCencInfo_SetKeyIdAndIv (OH_AVCencInfo *cencInfo, uint8_t *keyId, uint32_t keyIdLen, uint8_t *iv, uint32_t ivLen) | Sets the key ID and IV in the CENC information. |
| OH_AVErrCode * OH_AVCencInfo_SetSubsampleInfo (OH_AVCencInfo *cencInfo, uint32_t encryptedBlockCount, uint32_t skippedBlockCount, uint32_t firstEncryptedOffset, uint32_t subsampleCount, DrmSubsample *subsamples) | Sets the subsample information in the CENC information. |
| OH_AVErrCode * OH_AVCencInfo_SetMode (OH_AVCencInfo *cencInfo, enum DrmCencInfoMode mode) | Sets the CENC information mode. |
| OH_AVErrCode * OH_AVCencInfo_SetAVBuffer (OH_AVCencInfo *cencInfo, OH_AVBuffer *buffer) | Sets the CENC information to an AVBuffer. |
你可能感兴趣的鸿蒙文章
0
赞
- 所属分类： 后端技术
- 本文标签：
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦